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banded iron formation in gold mining

Banded iron formationhosted gold deposits have the potential to become largetonnage mines with extended mining lives Due to the appeal of these deposits gold exploration companies
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    Gold ore whose types of deposits are diverse and complex is the mineral assemblage of gold. With features of chalcophile affinity and high melting point, the gold ore includes conglomerate type, porphyry type, quartz vein type and volcanic rock type, etc.

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  • Iron Deposits – Banded Iron Formations BIF Geology for

    Banded iron formations BIFs are different – they were all formed at a time where the earth was a decidedly different environment than it is today Banded iron formations are critical to our current economy as they are by far the biggest source of economic iron deposits BIF from the USA Image CC A BIF is hard and heavy sedimentary stone

  • Banded Iron Formations

    Banded iron formations are of economic interest as they host the worlds largest iron ore deposits and many gold deposits Algomatype banded iron formations were deposited as chemical sediments along with other sedimentary rocks such as greywacke and shale and volcanics in and adjacent to volcanic arcs and spreading centers

  • Banded Iron Formation Mining Fundamentals

    Banded iron formations BIFs are sedimentary rocks characterized by the presence of alternating layers of ironrich minerals known as magnetite and amorphous silicarich rocks known as cherts Each layer is relatively thin with varying levels of thickness measuring from a

  • Banded Iron The Formation of a Mining Mainstay Discoverer

    Obviously banded iron formations contain iron – technically iron oxide or rust If you follow mining you also know that the banded iron formations are one of the most important sources of iron in the modern world – two of the largest producers Australia and China have enormous reserves of iron stored within their banded iron formations Outcrops of banded iron are found all over the world

  • Gold Mineralization in Banded Iron Formation in the Amalia

    The Blue Dot gold deposit located in the Archean Amalia greenstone belt of South Africa is hosted in an oxide ± carbonate facies banded iron formation BIF It consists of three stratabound orebodies Goudplaats Abelskop and Bothmasrust

  • Banded Iron Formation BIF Geology Page

    Banded iron formations are of economic interest as they host the world’s largest iron ore deposits and many gold deposits Algomatype banded iron formations were deposited as chemical sediments along with other sedimentary rocks such as greywacke and shale and volcanics in and adjacent to volcanic arcs and spreading centers Iron and silica were derived from hydrothermal sources associated with volcanic centres Algomatype iron formations

  • Banded iron formation Mineral information data and

    Commonly termed BIFs by geologists they are ironrich rocks almost always of Precambrian age predominantly associated with the great oxygenation event GOE about 2328 billion years ago It typically consists of repeated thin iron oxide layers a few mm to a few cm in thickness but may be banded from a microscopic to a metre scale

  • Banded Iron Formation an overview ScienceDirect Topics

    Banded Iron Formation Banded iron formation or BIF is a chemical sediment typically thinbedded or laminated with 15 iron of sedimentary origin Figure 86 BIF has a very distinct distribution with time Figure 825 It is found in minor amounts in the early Archean and in large amounts in the late Archean appears again around 185 Ga and then disappears from the geologic record for 1 Gyr appearing

  • Major Mines Projects Mining Intelligence and News

    Jul 03 2019 · The Wassa lithological sequence is characterized by lithologies belonging to the Sefwi Group and consisting of intercalated metamafic volcanic and metadiorite dykes with altered metamafic volcanic and metasediments which are locally characterized as magnetite rich banded iron formation “BIF” like horizons Bourassa 2003

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